Question

2. Describe the process of fertilisation in human beings.


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Answer 1

Answer:

Fertilisation occurs when a sperm fuses with the female act during intercourse and further forms an egg that gets implanted in uterus of the female. The sperm travels through the fallopian tube and penetrates the zona pellucida layer of the ovum (female egg) and fuses with it which forms zygote (fertilized egg).

Explanation:

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Answer 2

Question:

Describe the process of fertilisation in human beings.

Answer:

The fusion of male gametes with a female gamete to form a zygote during the sexual reproduction is called Fertilisation.

ㅤIn human beings, Internal Fertilisation takes place. The sperms enter through vaginal passage during copulation. They travel upwards and reach the oviduct where they may encounter the egg. The sperm may fuse with the egg and form a zygote. The zygote gets implanted in the lining of uterus and starts to divide. The mother's body is designed to undertake the development of the child for which the uterus prepares itself every month to recieve and nurture the growing child.

Important words:

• Internal Fertilisation -: The fertilisation which occurs inside the female body.
• Oviduct -: These are two tubes attached to Uterus one on either sides. Each tube is about 10-12 cm in length. The Oviduct carry egg (ova) from ovary to Uterus. It is the site Fertilisation.
• Zygote -: The male gamete combines with female gamete to form Zygote.
• Uterus -: It is a pear-shaped hollow muscular organ situated between the urinary bladder and the rectum. It recieves the fallopian tubes on eitherbside of uterus and is capable of undergoing great enlargement uterus contains developing young and expels it by muscular contraction at birth. It is site of development of young one. The lower partion of uterus is narrow are called cervix.

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